Children                Generates Individual Fertility Histories, Using
                        Function Sim_bio.
GetData                 Reads data from the HMD and HFD
GetGenerations          Creates Database 'dataLH' from Mortality Rates
                        and Fertility Rates
GetRates                Retrieves Data from HMD and HFD for a Selected
                        Country (All Years)
H_pw                    Computes cumulative hazard at duration t.
Lifespan                Generates Individual Lifespan(s)
Partnership             Allocates Partners to Members of Virtual
                        Population.
Sim_bio                 Generic Function to Generate Single Life
                        History
dataLH                  dataLH data
dpopus                  dpopus data Population of the United States in
                        2019 reported in the HMD (Population.txt file)
pw_root                 Equation for which root must be determined.
r.pw_exp                Sample from a piecewise-constant exponential
                        distribution.
rates                   rates data
